Xabagta PVC waa xabag si gaar ah loogu talagalay isku-xidhka walxaha polyvinyl chloride (PVC). Waxaa si weyn loo isticmaalaa in isku xidhka tuubooyinka caag ah, filimada, profiles, iyo alaabta kale. Wax qabadkeeda isku xidhka ee aadka u wanaagsan waxa ugu horayn sabab u ah isku dhafka kiimikaad ee gaarka ah iyo qaacido si cilmiyeysan loo habeeyey.
Qaybaha ugu muhiimsan ee xabagta PVC waxaa ka mid ah dareeraha, balaastiga, resin, iyo stabilizer. Miraha waa mid ka mid ah qaybaha asaasiga ah ee xabagta, sida caadiga ah dareerayaasha organic sida acetone, toluene, iyo methylene chloride. Walxahani waxay si wax ku ool ah u milaan qaar ka mid ah silsiladaha molecular ee dusha PVC, iyaga oo jilcinaya oo xoojiya xidhiidhka ka dhexeeya xabagta iyo substrate-ka. Codsiga ka dib, dareeraha ayaa si tartiib tartiib ah u soo baxa, taasoo keenaysa lakabka xabagta si ay u adkeyso, sameynta xiriir adag.
Balaastiijiyeyaasha, sida dioctyl phthalate (DOP) ama saliid soybean ah oo epoxidized ah, ayaa loo isticmaalaa si loo hagaajiyo dabacsanaanta iyo dhejinta alaabta PVC. Caagayeeyayaashu waxay dhex galaan silsiladaha molecular ee PVC, iyagoo hoos u dhigaya heerkulka kala-guurka galaaska, taas oo u sahlaysa koollada inay ku dhex milmaan dusha PVC iyo hagaajinta xoogga curaarta.
Resin waa qayb kale oo muhiim ah oo ka mid ah koollada PVC. Tusaalooyinka caadiga ah waxaa ka mid ah vinyl chloride{1} vinyl acetate copolymer (PVAC) ama xabagta polyisocyanate (PU). Resins-yadani waxay sameeyaan filim dhejis adag ka dib marka dareeruhu uumi baxo, iyaga oo siinaya -xoog dammaanad waara. Qaar ka mid ah xabagta PVC ee sare ayaa laga yaabaa inay ku jiraan acrylates ama epoxy resins si kor loogu qaado iska caabinta biyaha iyo kiimikada.
Intaa waxaa dheer, xasiliyayaal sida calcium zinc stabilizers ama xeryahooda organotin ayaa loo isticmaalaa si looga hortago PVC inay ku dumiso heerkulka sare ama UV soo-gaadhista, hubinta - xasilloonida muddada dheer ee xabagta.
Marka la soo koobo, waxqabadka isku xidhka xabagta PVC waxay ku xidhan tahay awooda dareeraha uu ku milmi karo PVC, saamaynta jilicsan ee balaastiga, filimka resinka{0}}kartida samaynta, iyo adkaysiga xasiliyaha. Noocyada kala duwan ee koollada PVC waxay ku habboon yihiin codsiyada kala duwan, sida degdegga ah -isku-xidhka, heerkulka sare{3}}{4}u adkaysta, ama xabagta dabacsan, si loo daboolo baahiyaha warshadeed ee kala duwan.